1 files changed, 95 insertions, 0 deletions
diff --git a/node_modules/workbox-core/_private/logger.mjs b/node_modules/workbox-core/_private/logger.mjs
new file mode 100644
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+++ b/node_modules/workbox-core/_private/logger.mjs
@@ -0,0 +1,95 @@
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+import LOG_LEVELS from '../models/LogLevels.mjs';
+import '../_version.mjs';
+
+// Safari doesn't print all console.groupCollapsed() arguments.
+// Related bug: https://bugs.webkit.org/show_bug.cgi?id=182754
+const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
+
+const GREY = `#7f8c8d`;
+const GREEN = `#2ecc71`;
+const YELLOW = `#f39c12`;
+const RED = `#c0392b`;
+const BLUE = `#3498db`;
+
+const getDefaultLogLevel = () => (process.env.NODE_ENV === 'production') ?
+  LOG_LEVELS.warn : LOG_LEVELS.log;
+
+let logLevel = getDefaultLogLevel();
+const shouldPrint = (minLevel) => (logLevel <= minLevel);
+const setLoggerLevel = (newLogLevel) => logLevel = newLogLevel;
+const getLoggerLevel = () => logLevel;
+
+// We always want groups to be logged unless logLevel is silent.
+const groupLevel = LOG_LEVELS.error;
+
+const _print = function(keyName, logArgs, levelColor) {
+  const logLevel = keyName.indexOf('group') === 0 ?
+    groupLevel : LOG_LEVELS[keyName];
+  if (!shouldPrint(logLevel)) {
+    return;
+  }
+
+  if (!levelColor || (keyName === 'groupCollapsed' && isSafari)) {
+    console[keyName](...logArgs);
+    return;
+  }
+
+  const logPrefix = [
+    '%cworkbox',
+    `background: ${levelColor}; color: white; padding: 2px 0.5em; ` +
+      `border-radius: 0.5em;`,
+  ];
+  console[keyName](...logPrefix, ...logArgs);
+};
+
+const groupEnd = () => {
+  if (shouldPrint(groupLevel)) {
+    console.groupEnd();
+  }
+};
+
+const defaultExport = {
+  groupEnd,
+  unprefixed: {
+    groupEnd,
+  },
+};
+
+const setupLogs = (keyName, color) => {
+  defaultExport[keyName] =
+    (...args) => _print(keyName, args, color);
+  defaultExport.unprefixed[keyName] =
+    (...args) => _print(keyName, args);
+};
+
+const levelToColor = {
+  debug: GREY,
+  log: GREEN,
+  warn: YELLOW,
+  error: RED,
+  groupCollapsed: BLUE,
+};
+Object.keys(levelToColor).forEach(
+  (keyName) => setupLogs(keyName, levelToColor[keyName])
+);
+
+export {getDefaultLogLevel};
+export {setLoggerLevel};
+export {getLoggerLevel};
+export {defaultExport as logger};